From 930195737a0916d80ad2f7fe8b0f8fe4e4691762 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Thu, 12 May 2016 17:51:24 +0200 Subject: oxnas: delete linux 4.1 support Signed-off-by: Felix Fietkau --- .../010-arm_introduce-dma-fiq-irq-broadcast.patch | 56 ---------------------- 1 file changed, 56 deletions(-) delete mode 100644 target/linux/oxnas/patches-4.1/010-arm_introduce-dma-fiq-irq-broadcast.patch (limited to 'target/linux/oxnas/patches-4.1/010-arm_introduce-dma-fiq-irq-broadcast.patch') diff --git a/target/linux/oxnas/patches-4.1/010-arm_introduce-dma-fiq-irq-broadcast.patch b/target/linux/oxnas/patches-4.1/010-arm_introduce-dma-fiq-irq-broadcast.patch deleted file mode 100644 index 65ef6bc5e6..0000000000 --- a/target/linux/oxnas/patches-4.1/010-arm_introduce-dma-fiq-irq-broadcast.patch +++ /dev/null @@ -1,56 +0,0 @@ ---- a/arch/arm/include/asm/glue-cache.h -+++ b/arch/arm/include/asm/glue-cache.h -@@ -156,11 +156,19 @@ static inline void nop_dma_unmap_area(co - #define __cpuc_flush_user_range __glue(_CACHE,_flush_user_cache_range) - #define __cpuc_coherent_kern_range __glue(_CACHE,_coherent_kern_range) - #define __cpuc_coherent_user_range __glue(_CACHE,_coherent_user_range) -+#ifndef CONFIG_DMA_CACHE_FIQ_BROADCAST - #define __cpuc_flush_dcache_area __glue(_CACHE,_flush_kern_dcache_area) - - #define dmac_map_area __glue(_CACHE,_dma_map_area) - #define dmac_unmap_area __glue(_CACHE,_dma_unmap_area) - #define dmac_flush_range __glue(_CACHE,_dma_flush_range) -+#else -+#define __cpuc_flush_dcache_area __glue(fiq,_flush_kern_dcache_area) -+ -+#define dmac_map_area __glue(fiq,_dma_map_area) -+#define dmac_unmap_area __glue(fiq,_dma_unmap_area) -+#define dmac_flush_range __glue(fiq,_dma_flush_range) -+#endif /* CONFIG_DMA_CACHE_FIQ_BROADCAST */ - #endif - - #endif ---- a/arch/arm/mm/Kconfig -+++ b/arch/arm/mm/Kconfig -@@ -858,6 +858,17 @@ config DMA_CACHE_RWFO - in hardware, other workarounds are needed (e.g. cache - maintenance broadcasting in software via FIQ). - -+config DMA_CACHE_FIQ_BROADCAST -+ bool "Enable fiq broadcast DMA cache maintenance" -+ depends on CPU_V6K && SMP -+ select FIQ -+ help -+ The Snoop Control Unit on ARM11MPCore does not detect the -+ cache maintenance operations and the dma_{map,unmap}_area() -+ functions may leave stale cache entries on other CPUs. By -+ enabling this option, fiq broadcast in the ARMv6 -+ DMA cache maintenance functions is performed. -+ - config OUTER_CACHE - bool - ---- a/arch/arm/mm/flush.c -+++ b/arch/arm/mm/flush.c -@@ -314,7 +314,11 @@ void flush_dcache_page(struct page *page - - mapping = page_mapping(page); - -+#ifndef CONFIG_DMA_CACHE_FIQ_BROADCAST - if (!cache_ops_need_broadcast() && -+#else -+ if ( -+#endif - mapping && !page_mapped(page)) - clear_bit(PG_dcache_clean, &page->flags); - else { -- cgit v1.2.3